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No.1 Normal lock stitch
No.2 Start backtack
No.3 End backtack
No.4 Start/end backtack
Actuator
correction
.
B/
A| /
1/
A
C/ I
/
ID
'
i
A
C/ 1
/
ID
Thread trimming activated by reversing the treadle.
No.5 Fixed stitch sewing
only
No.6 Start backtack and
fixed stitch sewing
Thread trimming activated after end backtack by reversing
the treadle.
No.7 Fixed stitch sewing
and end backtack
No.8 Start/end backtack and
fixed stitch sewing
Fixed stitch
Actuator
correction
i B/ ,
K' '
i
V
N
Fixed stitch I
Fixed stitch
I
/I
a!
i
S'
n!
Fixed stitch
A
V
!a
Thread trimming activated by reversing the treadle.
No.9 Fixed stitch and thread
trimming
No. 10 Start backtack, fixed
stitch and thread
trimmin
Thread trimming activated after end backtack by reversing
the treadle.
I
A
.
i B/ |
A | /
I
1/
I
V
I
!
Ba'1,
1
/
N1
No.13 Continuous backtack
Sewing completed through thread trimming by holding the treadle depressed.
\
/A'
/
\
Bl \ °l
A\
1
C'
/
\ /
\ /
V
v
Sewing completed through
thread trimming by holding
the treadle depressed.
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